http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-112142697-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D307-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61Q19-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61Q19-02 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D307-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q19-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61Q19-08 |
| filingDate | 2020-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-112142697-B |
| titleOfInvention | Vc ethyl ether production process |
| abstract | The invention belongs to the technical field of chemical synthesis, and particularly discloses a production process of Vc ethyl ether, wherein the Vc ethyl ether adopts the following synthesis path: vitamin C is used as an initial raw material, and is subjected to acetonide protection, etherification and hydrolysis deprotection to obtain Vc ethyl ether; the production process comprises the steps of condensation, etherification, hydrolysis and refining. The invention replaces acetone with acetone dimethyl acetal, thereby avoiding the problem of the reduced yield of Vc ethyl ether caused by acetone in the traditional three-step method; the generation of byproducts in the etherification process is reduced by controlling the addition mode of bromoethane, and DMSO is removed by a brine-toluene extraction system, so that the purity of the product is effectively improved; the Vc ethyl ether prepared by the process has the yield of over 65 percent and the purity of the finished product of over 99 percent. In addition, the invention has simple process, high efficiency and low cost, and does not need to frequently transfer materials. |
| priorityDate | 2020-10-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 58.